The Odd Life of Timothy Green (2012)

The Odd Life of Timothy Green Info » A childless couple bury a box in their backyard, containing all of their wishes for an infant. Soon, a child is born, though Timothy Green is not all that he appears..
After receiving bad news from a fertility doctor, Cindy and Jim Green try to bury their dreams of having a child by writing out all the great traits their child would have and putting them in a box in the garden. During a freak storm in the middle of the night, they awake to find a boy named Timothy, with leaves growing from his ankles, standing in their kitchen calling them mom and dad. Cindy and Jim are thrown into the midst of parenthood and over the coming months, Timothy will teach them more than they could have imagined about being parents and raising a child, no matter how he comes into their lives.
(ImDb)